Disposable respirator



FIG. 1 is a front perspective, of a respirator embodying my new design;

FIG. 2 is an elevational view of one side of the respirator, the opposite side being of substantially the same appearance;

FIG. 3 is a top plan view of the respirator; and

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a disposable respirator, as shown and described. 